I think that that code is too dark for a grey group, even if some of them are slightly on the ds of grey.
I was thinking something along the lines of the teachings of Sun Tzu. I'll try to come up with something, here goes:
The Universe is whole.
Reality depends on perspective.
Truth comes from knowing this.
Power comes from knowing that you can stike.
Victory is gained by knowing when to strike.
Or (and this is a direct quote)
Resolved to die, one can be killed.
Resolved to live, one can be captured.
Quick to anger, one can be goaded.
Pure and honest, one can be shamed.
Loving the people, one can be aggravated.
Hmm, i'm going to have to think some more about this. But what do you think of that as a basis?
Another great idea by the people who brought you beer milkshakes!